方法1
<script>
if(navigator.platform.indexOf('Win32')!=-1){
//pc
window.location.href="PC端网站地址";
}else{
//手机
window.location.href="手机端网站地址";
}
</script>
方法2
<script type="text/javascript">
function browserRedirect() {
var sUserAgent= navigator.userAgent.toLowerCase();
var bIsIpad= sUserAgent.match(/ipad/i) == "ipad";
var bIsIphoneOs= sUserAgent.match(/iphone os/i) == "iphone os";
var bIsMidp= sUserAgent.match(/midp/i) == "midp";
var bIsUc7= sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
var bIsUc= sUserAgent.match(/ucweb/i) == "ucweb";
var bIsAndroid= sUserAgent.match(/android/i) == "android";
var bIsCE= sUserAgent.match(/windows ce/i) == "windows ce";
var bIsWM= sUserAgent.match(/windows mobile/i) == "windows mobile";
if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {
window.location.href= '移动端网站地址';
} else {
window.location= 'PC端网站地址';
}
}
browserRedirect();
</script>